Pipe-joint.



' c. BB'VAILLOT.

PIPE JOINT. APPLICATION rxnnn' nn. 6, 1909.

' Patented Dec; 28,1909.

CLAUDE BEVAILLOT, 0F NICE, FRANCE.

PIPE-JOINT.

Specification of Letters Patent.

Patented Dec. 28, 1909.

Application filed March 6, 1909. Serial No. 481,682.

To all whom it may concern:

Be it known that I, CLAUDE REVAILLOT, a

citizen of the Republic of France, and resident of Nice, in France, haveinvented new and useful Improvements in Pipe-Joints, of which thefollowing is a description.

The present invention relates to pipe joints and has for its object toprovide a joint device capable of being applied to pipes of any size andmade of any metals or cement concrete with iron structure. This improvedjoint is made of two main parts of similar shape which may be integralwith the pipe as usual.

In the annexed drawing Figure 1 is a longitudinal section through theaxis of one of the tightening lugs AA showing the joint in the connectedposition. Fig. 2 is a perspective view showing the parts ready to beconnected.

In Fig. 2 are shown the three connecting lugs the one of which is madelonger and narrower than the others and is provided at its upper endwith a V-shaped recess for the wedges B designed for tightening thejoint. Each part is provided with tWo circular grooves, the one C ofwhich is arranged at the upper part and forms with the notch in the pipea recess for the india rubber ring F for insuring a tight joint, whilethe other D in the inner face is designed to receive both studs E oneach pipe. The studs are inserted in this recess through two lateralapertures. The studs being opposite both of these apertures the partsare held on the pipe by turning the same a quarter of a revolution fromthe right to the left, the studs then being engaged within the groove.On each part and diametrically opposite the longer lug is a fiat part,where the longer lug of other similar part is located, such flattenedpart being necessary for holding the wedge.

When both ends of pipes are provided with a connecting part, the partsare engaged into each other, taking care that lugs be lodged withintheir recesses, the longer lugs adjusted opposite the flattened parts ofthe corresponding members. These longer lugs must be arranged right andleft on the pipe and the Wider side of the V-shaped recess should be ontop so as to allow the wedges B to be easily engaged and driven through.Such a joint has greatest strength.

With such removable parts, one or more lengths of pipe may be removedwithout interfering with the adjacent ones. This is carried out byturning the core formed of both connected parts until the studs comeopposite the lateral grooves, then the wedges being removed each partmay be caused to slide on the pipe, that carries the same, when thepipes will thus be disengaged and can be easily removed. For largediameters the india rubber ring may be replaced by a cement or likecord.

The advantages of this improved joint are, great rapidity of connectingand disconnecting the joint, even after a long stay in the earth and theconvenience in removing one or more pipe lengths Without interferingwith the adjacent pipes, a matter, which is impossible in the threadedjoints and in other joints which can only be disconnected by breakingthe same. The cost of such a joint is very low compared with othertypes.

What is claimed as new is:

l. A pipe joint or coupling comprising two parts, each with connectinglugs. one of which is longer and narrower than the other and providednear its end with a V- shaped recess, and wedges engageable in saidrecesses for tightening the joint.

2. A pipe joint or coupling comprising two parts, each with connectinglugs, one of which is longer and narrower than the other and providednear its end with a V-shaped recess, and wedges engageable in saidrecesses for tightening the joint. each part provided with two separatedgrooves, a ring in one groove and studs in the other.

3. A pipe joint or coupling comprising two parts. each with connectinglugs, one of which is longer and narrower than the other and providednear its end with a V-shaped recess, and wedges engageable in saidrecesscs for tightening the joint, each part provided with two separatedgrooves, a ring in one groove and studs in the other, each partdiametrically opposite the larger lug being provided with a flattenedpart for engagement with said wedges.

1n testimony whereof I ailix my signature.

CLAUDE REVAILLOT.

In the presence of H. C. Coxn, Gnonon Rmo'r.

